Recovery of glycerine from sorbitol by azeotropic distillation

Details Recovery of glycerine from sorbitol by azeotropic distillation Recovery of glycerine from sorbitol by azeotropic distillation

1991-11-14

1993-03-02

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 69, 568869, B01D 336, C07C 2982

Patent

active

051906228

ABSTRACT:
Glycerine cannot be easily separated from sorbitol by atmospheric or reduced pressure distillation because of their high boiling points. Glycerine can be readily separated from sorbitol by azeotropic distillation. Typical effective agents are biphenyl, benzyl benzoate and dimethyl phthalate.

REFERENCES:
patent: 2004135 (1935-06-01), Rothrock
patent: 2154930 (1939-04-01), Evans
patent: 4560812 (1985-12-01), Blytas
patent: 4975158 (1990-12-01), Berg
patent: 4980033 (1990-12-01), Berg

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